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    Question

    The ratio of males and females in a zoo is 4:5

    respectively and the percentage of children among males and the percentage of children among females are 15% and 20% respectively. If the number of adult females in the zoo is 5200 then what will be the total population in a zoo?
    A 12144 Correct Answer Incorrect Answer
    B 18440 Correct Answer Incorrect Answer
    C 10400 Correct Answer Incorrect Answer
    D 11700 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the number of males and females be 4x and 5x respectively. Percentage of children among females = 20% So, 80% of females are adults, => 80/100×5x = 5200 => 5x = 6500 => x = 1300 Total population = 4x + 5x = 9x = 9 ×1300 = 11700

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